All the traces are（）old ones.
All the torn bags are treated（）original ones.
The piston ring grooves for a standard engine are （）
The crankcase of many diesel engines are kept under a slight vacuum by the （）.
The piston rings are manufactured with a diameter （） the bore of the cylinder.
To function properly, oil control rings used on a diesel engine piston must distribute sufficient oil to all parts of the cylinder wall and must also（）.
For SONET ring switching， the 50ms switch time： Select all that apply？（）
In order to keep the oil film on the cylinder liner during the running-in period, the piston rings are slightly rounded（）
Around the combustion chamber, all the main components are bore cooled to give low strains and the smallest, circumferentially symmetric deformations for good sealing between piston rings and liner（）
Before replacing a piston you should check the rings to see that all clearances and gaps are （） the permissible tolerances.
When the vessel shafting are installed, the slightly inclined of the shaft line should be rectified by（）
When inspecting piston rings through the ports of a two-stroke/cycle diesel engine, black areas on the sealing surfaces are the result of （）
Which of the following are components of a mechanical seal? （） (1) stationary ring (2) rotational ring (3) packing (4)spring
All of the following are distress signals EXCEPT（）.
All the expenses are（）the ship’s account.
These are the principles, however formulated,（）all good men and women throughout the world are standing.
The sealing rings are in four parts and pressed together around the piston rods by means of （）.
The speaker finds that babies all over the world are citizens of the world, because they can discriminate all the sounds of all languages.
The company says that all the sandwiches are…
—Are you sure Mr Bush is at home？ He might still be in his office—Let's ring the_____.
There are slightly more smokers among women with higher family income and higher education than among the lower income and lower educational groups.
英语翻译 -OUTER RING ﹠ ROLLERS ARE NON-INTERCHANGEABILITY -ROLLERS ARE ASSEMBLED TO OUTER RING WITH GREASE AND ROLLERS ARE RETAINED BY THE PLUG SHAFT AND WASHERS ARE PACKED APART FROM OUTER RING AND ROLLERS -ROLLERS AND OUTSIDE OF OUTER RING:CROWNED SURFACE NOT 1.PROHIBITION OF USE OF HEAVY METAL MUST CONFORM TO MS 201-02
Click the Exhibit button. Within an ONS 15454, you are provisioning a circuit on an unprotected UPSR ring. In the exhibit, which two must you configure？（） （Choose two.)
请阅读短文，完成此题。When we analyze the salt salinity（盐溶度 ） of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three b
